Bob Johnson vs. Don Kaiser — Career Comparison

Looking at the career totals, Bob Johnson and Don Kaiser are fairly close on the surface numbers. Bob Johnson posted stronger numbers in ERA (3.48 vs 4.15) and WHIP (1.366 vs 1.458). Don Kaiser had the advantage in home runs allowed (0.79 per nine innings vs 1.07). By the career numbers, Bob Johnson had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.